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@NASA

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Joined December 2007
Born October 1, 1958
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  1. Retweeted
    15 hours ago

    . Kayla Barron and kicked off the new year with a stellar Q&A session with students from the Nevada Civil Air Patrol.✨ Can you guess what the astronauts did for New Year’s Eve? Check out this clip to find out! ‍🎆👨🏻‍🚀

    Nevada Civil Air Patrol Downlink Recap
    34 replies 132 retweets 1,113 likes
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  2. 15 hours ago

    ✨🌒 Need some bright spots in your life? Look up. If skies are clear tonight, you can see the Moon very close to Jupiter in the west after sunset. Here's "What's Up":

    Chart of stars and planets showing the Moon close to Jupiter.
    98 replies 716 retweets 4,463 likes
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  3. Retweeted
    23 hours ago

    I will be the first mission to use voice commands from mission control to a spacecraft in deep space. Callisto, a collaboration between , , and , will demonstrate voice activation technology aboard :

    A sign that reads "Callisto" in glowing blue letters in seen in the foreground. In the background, two people wearing masks and headsets converse.
    35 replies 204 retweets 1,203 likes
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  4. 18 hours ago

    Like a latch made in heaven, ’s secondary mirror is now fully deployed and locked! The team remains focused as they work toward the final major milestone this week – deployment of the iconic honeycomb-shaped mirror. Details:

    152 replies 1,424 retweets 9,837 likes
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  5. Retweeted
    20 hours ago

    ✅ Secondary mirror deployed! But there's little time to pause and reflect. Teams will ensure 's tripod structure is latched before beginning its final major milestone this week: full deployment of the space telescope's honeycomb-shaped primary mirror.

    The secondary mirror support structure of the James Webb Space Telescope is fully deployed on the ground in a test at Northrop Grumman.
    267 replies 2,457 retweets 19,794 likes
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  6. 21 hours ago

    LIVE NOW: Teams deploy ’s secondary mirror, a tripod-like structure that will help the space telescope . Have questions? Use !

    162 replies 905 retweets 5,020 likes
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  7. 22 hours ago

    Watch live coverage starting at ~10:20am ET (15:20 UTC) from mission control as teams deploy its tripod-like secondary mirror structure. The mirror will help reflect light to : Have questions? Drop them below.

    The James Webb Space Telescope shown in a clean room with its secondary mirror, a tripod-like structure, extended out in front of it's unfolded primary mirror.
    111 replies 562 retweets 3,968 likes
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  8. Jan 4

    🍎It's Sir Isaac Newton's birthday and guess what dropped? Our newest Twitter account! Follow to see how experiments conducted in microgravity help benefit life on Earth.

    We’re LIVE! Our experiments study biological & physical processes in space using various platforms, including microgravity. Check out this article to learn about BPS and how our launch date connects to one of the most famous scientists to study gravity:
    73 replies 299 retweets 2,583 likes
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  9. Retweeted
    Jan 4

    We just finished deploying our sunshield today, but wait, there's more! 's secondary mirror is planned to be unfolded tomorrow, Jan. 5th, in the morning (Eastern time). Read more at the blog:

    134 replies 1,257 retweets 10,878 likes
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  10. Jan 4

    Listen in as experts give an update following today’s successful deployment of the 5-layer, tennis-court-size sunshield in space: ~75% of 344 potential single-point failures are now behind us on the telescope's journey to .

    89 replies 675 retweets 5,858 likes
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  11. Jan 4

    Shields up! has completed the tensioning of its tennis-court-size sunshield. This five-layered shade will protect the telescope from the heat of the Sun, Earth and Moon, helping it in infrared light. Details & next steps:

    247 replies 1,801 retweets 11,225 likes
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  12. Retweeted
    Jan 4

    This is it: we’ve just wrapped up one of the most challenging steps of our journey to . With all five layers of sunshield tensioning complete, about 75% of our 344 single-point failures have been retired!

    Image from October 2019 after the completion of deployment testing for the Webb telescsope's silver 5-layer, kite-shaped sunshield.
    787 replies 6,423 retweets 40,732 likes
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  13. Jan 4

    Why is 's sunshield shaped like a kite? In short, it's exactly the shape & size it needs to be. The iconic profile lets the telescope tilt back and forth to observe more of the universe. Plus, it helps radiate heat from the sides. Take a look:

    43 replies 266 retweets 2,224 likes
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  14. Jan 4

    It's time: is GO to begin tensioning its fifth and final sunshield layer, a major milestone for the telescope. Watch the live feed from mission control:

    Go for sunshield tensioning layer 5
    80 replies 885 retweets 6,433 likes
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  15. Jan 4

    LIVE: team gives real-time updates in the final hours of the space telescope’s sunshield deployment. Successful shield tensioning will ensure Webb’s mirrors stay cold enough to . Reply with questions for expert answers.

    195 replies 815 retweets 4,513 likes
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  16. Jan 4

    COMING UP: At ~9:30 am ET (14:30 UTC) experts answer your questions about the telescope’s 5 layer, tennis court-sized sunshield during the final hours of its deployment. Use to ask about the shield & how it works. Watch at

    Artist consept of the James Webb Space Telescope with its sunshield deployed in space.
    63 replies 462 retweets 4,600 likes
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  17. Retweeted
    Jan 3

    The layers start coming and they don’t stop coming… Layers 2 and 3 are now complete! Tensioning for the final two layers of Webb’s 5-layer sunshield is planned for tomorrow. More:

    Screen still of the James Webb Space Telescope's sunshield halfway through sunshield tensioning. Two of its five silver, reflective sunshield layers have been pulled taut.
    154 replies 893 retweets 7,075 likes
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  18. Jan 3

    🤔 Is Mars habitable? Do aliens exist? Are there oceans on other worlds? You've got questions. We've got answers. Our "We Asked a NASA Expert" video series tackles these questions and more. Watch:

    We Asked a NASA Expert
    111 replies 287 retweets 1,960 likes
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  19. Retweeted
    Jan 3

    “Onions have layers. Ogres have layers.” And so does our sunshield! Layer 1 of our 5-layer sunshield is now pulled taut, getting us even closer on our journey to . We have begun tensioning Layer 2:

    142 replies 1,154 retweets 9,248 likes
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  20. Retweeted
    Jan 3

    Today we start tensioning the most Sun-facing layer of 's 5-layer, tennis court-sized sunshield. Read in depth how our sunshield works ➡️ More about tensioning activities:

    200 replies 1,806 retweets 15,247 likes
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